Religious implications for International Business

To illustrate the role of religion in business, this video is a practice tool because it examines the Protestant work ethics and its relation to the Spirit of Capitalism, according to Max Weber:

Weber's Protestant ethic and the Spirit of Capitalism. (2008). Retrieved on May 9th, 2011 from: http://www.youtube.com/watch?v=iUnAMqfEIWw

So now, which is the difference between this and Catholicism?

It is said that working from a catholic perpective is seen as pain, since the human kind commited sin to God, it started to be painful and disgusting, more than an activity that would lead human kind to be successful. In that sense, people will not work because of motivation and commitment to a specific cause, but because of an obligation, a need of purging the "Original sin".

According to this, does religion shape the economic systems and business? If so, would it be necessary changing religious beliefs to boost economy and development in weak economies?

References:

-Weber's Protestant Ethics and the Spirit of Capitalism. (2008). Retrieved on May 9th, 2011 from: http://www.youtube.com/watch?v=iUnAMqfEIWw

- Hartman, L. and Werhane, P. (2009). The Global Corporation: Sustainable, Effective and Ethical Practices-A Case Book. Routledge, New York. Chapter 5 , Pp. 168-181. (Islamic Banking and Finance - Moral beliefs and  Business practices at work).